Ever more question marks have been raised in recent weeks over the reputations of the UN’s Intergovernmental Panel on Climate Change (IPCC) and of its chairman, Dr Rajendra Pachauri. But the latest example to emerge is arguably the most bizarre and scandalous of all. It centres on a very specific scare story which was included in the IPCC’s 2007 report, although it was completely at odds with the scientific evidence – including that produced by the British expert in charge of the relevant section of the report. Even more tellingly, however, this particular claim has repeatedly been championed by Dr Pachauri himself.

Only last week Dr Pachauri was specifically denying that the appearance of this claim in two IPCC reports, including one of which he was the editor, was an error. Yet it has now come to light that the IPCC, ignoring the evidence of its own experts, deliberately published the claim for propaganda purposes.